Nozzle.



A. HUSTUS.

NOZZLE.

APPLICATION FILED MAY 1,1913.

Patented Jan. 12, 1915.

ARTHUR HUSTUS, OF BOSTON, MASSACHUSETTS.

NOZZLE.

Application filed May 1, 1913.

To all whom it may concern.

Be it known that I, ARTHUR HUSTUS, a citizen of the United States ofAmerica, and resident of Boston, in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvements inNozzles, of which the following is a specification.

This invention relates to nozzles and particularly to that class ofnozzles that are used on fire extinguishers and similar devicesdelivering through said nozzles a stream or spray of chemicals. Thechemicals used are such as will act upon the metal of the nozzle andcause its corrosion, thus often preventing the operation when most.needed.

One-object of the present invention is to obviate this difficulty andproduce a device which will be ready for operation at any and all times.

The invention consists in certain novel features of construction andarrangement of parts which will be fully understood by reference to thedescription of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents an elevation of a nozzle embodyingthe features of the present invention. Fig. 2 represents a verticalsection of the same, and Fig. 3 represents a transverse section, thecutting plane being on line 33 on Fig. 2.

Similar characters designate like parts throughout the several figuresof the drawin s.

Tn the drawings, the inner member 10 is preferably made of brass and isprovided with a threaded end 11 by which the nozzle may be secured to apipe, hose, or other tubular member. The inner member 10 is providedwith an annular screw threaded flange 12 to which is threaded the outermember 13 (as shown in Fig. 2) said outer member 13 being provided withan elongated nose 1 1. The inner member 10 has a central passage 15extending partially therethroug Within a chamber 16 within the outermember 13 is positioned a packing 17 retained in position by the gland18 threaded thereto and adjustable therein. This packing 17 prevents allchemicals and water from passing to the threads 19 between the innermember 10 and outer member 13. The passage 15 in the inner member 10 hasan outlet 20 therefrom at one side of the axis of said inner member 10and its central pas- Specification of Letters Patent.

of the nozzle Patented Jan. 12, 1915. Serial No. 764,921.

sage 15 and the outer member 13 is prov1ded with a discharge passage 21extending through the nose 14 and adapted to be position, as indicatedin Fig. 2.

etween the outer member 13 and the outer end of the cylindrical hub ofthe inner member 10 is interposed the perforated disk 23 preferably ofhard rubber. Then the outlet 20 and passage 21 are alined there isconsiderable space between the disk 23 and the end of the hub 22 butwhen the outer member 13 is moved about its axis relative to the innermember 10 the passage 21 is moved out of alinement with the outlet 20and at the same time the disk 23 is brought into close contact with theend of the hub 22 thereby preventing all chance for leakage of theliquids passing through the nozzle. The hub 22 accurately fits a chamberwithin the outer member 13, as shown in the drawings. A stop pin 21 isprovided to limit the movement of the outer member 13 relative to theinner member 10 in opening the valve, a shoulder 25 on the outer member13 being provided as a limiting stop.

The packing 17 is located as near as possible to the end of the hub 22in order to reduce to a minimum the surface liable to be affected bycontact with the chemicals to be discharged from the nozzle. Theliability of the valve sticking is almost entirely overcome when thenozzle is constructed as shown and described herein.

The movement of the outer member 13 relative to the inner member 10 inclosing is limited by the contact of the disk 23 with the end of the hub22. As this disk 23 is of hard rubber and the end of the inner member 10contacting therewith is of brass there is no opportunity for thechemicals to cause an adherence between the two.

It is believed that the operation and many advantages of the inventionwill be fully understood from the foregoing description.

Having thus described my invention, I claim:

1. In a nozzle, the combination of an inner member provided with anoutlet at one side of its axis and having a threaded flange and acylindrical hub; an outer member secured to said inner member by saidthreaded flange and rotatable thereon, said outer member fitting oversaid cylindrical hub and having a chamber surrounding said hub, the wallof which is screw threaded; an annular packing in said chamber; a glandbearing on said packing and adjustable on said thread; and a nose onsaid outer member provided with a discharge passage ofiset from the aXisof Gopies of this patent may be obtained for mental screw thread, meansfor controlling the flow of liquid by the rotation of the outer member,a packing ring to prevent the passage of liquid between the bore of theouter member, and a gland therefor having a screw thread connection withthe outer member.

In testimony whereof I affiX my signature.

ARTHUR HUSTUS.

-Witnesses HARRY A. GLAZIER, MARTHA IRVING.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G."

hub and the

